CONTROL OF SINGLE-SPAN HIGHWAY BRIDGE VIBRATIONS

A COMPARISON OF THE DYNAMIC RESPONSE OF VARIOUS BRIDGE DESIGNS TO INDIVIDUAL HEAVY VEHICLE CROSSINGS AND WITH AN EVALUATION OF SEVERAL TECHNIQUES FOR REDUCING THE RESULTANT DYNAMIC MOTIONS OF LONG-SPAN BRIDGES IS DEALT WITH. FOUR SINGLE-SPAN BRIDGE DESIGNS, ALL 250 FT IN LENGTH, ARE CONSIDERED: CONCRETE AND ORTHOTROPIC COMPOSITE DECK CONSTRUCTIONS USING BOTH LOW-ALLOY STRUCTURAL STEEL AND HIGH-STRENGTH STEEL. THE VIBRATORY MOTIONS OF EACH UNTREATED BRIDGE ARE CALCULATED AS A FUNCTION OF VEHICLE TYPE AND SPEED AND OF ROADWAY CHARACTERISTICS (IDEALIZED SMOOTH ROAD AND ROADWAY ROUGHNESS), BASED ON SIMPLIFIED MODEL REPRESENTATIONS FOR THE BRIDGE AND VEHICLE. FOUR TREATMENTS FOR BRIDGE VIBRATION CONTROL ARE ANALYZED: RIGIDIZATION, DAMPING, PASSIVE ABSORBERS, AND ACTIVE ABSORBERS. A COMPARISON IS MADE BETWEEN THE RESPONSE OF THE UNTREATED AND TREATED BRIDGES, AND THE EFFECTIVENESS OF EACH TREATMENT IN REDUCING THE DYNAMIC MOTIONS OF THE UNTREATED BRIDGES IS EVALUATED. DESIGNS ARE EVOLVED FOR EACH TREATMENT, AND A COMPARISON IS MADE ON THE BASIS OF COST EFFECTIVENESS. CONCLUSIONS ARE MADE REGARDING THE DYNAMIC RESPONSE OF EACH TYPE OF BRIDGE DESIGN, THE EFFECTIVENESS OF EACH TREATMENT, AND THE CHOICE OF TREATMENT. /AUTHOR/

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/hrr/1971/354/354-003.pdf
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309019672
• Supplemental Notes:
  • Sponsored by Committee on Dynamics and Field Testing of Bridges and presented at the 50th Annual Meeting. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Derby, Thomas F
  • Calcaterra, Peter C
• Conference:
  • 50th Annual Meeting of the Highway Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1971-1-18 to 1971-1-22
• Publication Date: 1971

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 27-44
• Monograph Title: Bridges and Bridge Foundations
• Serial:
  • Highway Research Record
  • Issue Number: 354
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Absorbents; Bridge design; Bridges; Concrete bridges; Damping (Physics); Dynamic loads; Impacts; Mathematical models; Performance; Shock absorbers; Speed; Stiffness; Structural design; Vehicle classification
• Uncontrolled Terms: Dynamic response; Models
• Old TRIS Terms: Absorbers; Active absorbers; Passive absorbers
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00209553
• Record Type: Publication
• ISBN: 0309019672
• Files: TRIS, TRB
• Created Date: Dec 20 1971 12:00AM